NYC-WTC_000187239

NYC 9/11 Public Portal Document

10/16/2001 14:40 6314676905 PEDNEAULT ASSOCIATES PAGE 04

I 1 Prepared Exclusively Por: PEDNEAULTASSOCIATES, INC NYCDEP-Emergeacy Response & Tech Assmt. 161S BOX20S, BOHEMIA. HE 1/716

96-05 Horace Harding Expressway LAB#: 01100281 Corona NY 11368 PROJECT ID WORLD TRADE CENTER- 5 Boro Sampling (718) 595-4650 MATRIX: AIR\GAS

COLLECT DATE DATE RECEIVED RELEASE Date REPORT DATE 10/14/0'. 6:00 PM 10/14/01 9:45:00 PM 10/16/01 10/16/01 SAMPLE ORIGIN I38th St. & 3rd AVENUE, BRONX Sample ID#: 01100281 -002 RESULT UNITS MD.L. METHOD ANALYSIS DATE OichlorodlfluorQmethane 1.30 ppb vAz 0.123 USEPA TO-15 10/15/01 Chloromathane 1.53 ppb v/v 0.1037 USEPA TO-15 10/15/01 1,2-DlcWQrQtetrafluofoethane ND ppb v/v 0.2686 USEPA TO-15 10/15/01 Vinyl Chloride ND ppb v/v 0.1249 USEPA TO-15 10/15/01 Bro mo methane ND ppb v/v 0.2418 USEPA TO-15 10/15/01 Chloroethane NO ppb v/v 0.2478 USEPA TO-15 10/15/01 Trichlorofluoromethane 0.54 ppb v/v 0.1839 USEPA TO-15 10/15/01 l.l-DIchloroefhene ND ppb v/v 0.07S9 USEPA TO-15 10/15/01 Methylene chloride ND ppb v/v 0.1909 USEPA TO-15 10/15/01 Freon 113 ND ppb v/v 0.161 USEPATO.15 10/15/01 1,1-Dlchloroethane ND ppb v/v 0.1398 USEPA TO-15 10/15/01 Methyl-tert-butyl ether 2.73 ppb v/v 0.128 USEPA TO-15 10/15/01 ci5-1,2-Dichloroethene ND ppb v/v 0.1783 USEPA TO-15 10/15/01 Chloroform ND ppb v/v 0.1681 USEPA TO-15 10/15/01 1.2-Dichloroethane ND ppb v/v 0.1688 USEPA TO-15 10/15/01 1,1,1 -Trtchloroethano ND ppb v/v 0.0974 USEPA TO-15 10/15/01

Benzene 0.68 ppb viv 0.1201 USEPA TO-15 10/15/01 Cartoon Tetrachloride 0.13 ppb v/v 0.0922 USEPA TO-15 10/15/01 1,2-DlchlorapropanQ ND ppb v/v C.1130 USEPA TO-15 10/15/01 Trlchloroethene NO ppb v/v 0.1329 USEPA TO-15 10/15/01

cis-1,3-DiChloropropeno ND ppb v/v 0.0924 USEPA TO-15 10/15/01 trans-1,3-Dichloropropone ND ppb v/v 0,1222 USEPATO.15 10/15/01 1,1.2-Thchloroethane NO ppb v/v 0.0896 USEPA TO-15 10/15/01 Toluene 1.60 ppb v/v 0.0735 USEPA TO-15 10/15/01 1,2-Dibromoethane ND ppb v/v 0.0971 USEPA TO-15 10/15/01 Tetrachloroethene ND ppb v/v 0.0845 USEPA TOr 15 10/15/01 Chlorobenzene NO ppb v/v 0.1343 USEPA TO-15 10/15/01

Ethylbenzene 0.30 ppb v/v 0.0744 USEPA TO-15 10/15/01

John Pedneault Page 3 of 16 ND=RESULT IS EQUAL TO OR LESS THAN MDL Lab Director NYS ELAP #10224 MWBE #46075

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NYC-WTC_000187241